212031331000057 has 2 divisors, whose sum is σ = 212031331000058. Its totient is φ = 212031331000056.

The previous prime is 212031331000003. The next prime is 212031331000127. The reversal of 212031331000057 is 750000133130212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171248342543721 + 40782988456336 = 13086189^2 + 6386156^2 .

It is a cyclic number.

It is not a de Polignac number, because 212031331000057 - 2³⁹ = 211481575186169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212031330999989 and 212031331000034.

It is not a weakly prime, because it can be changed into another prime (212031331000157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106015665500028 + 106015665500029.

It is an arithmetic number, because the mean of its divisors is an integer number (106015665500029).

Almost surely, 2^{212031331000057} is an apocalyptic number.

It is an amenable number.

212031331000057 is a deficient number, since it is larger than the sum of its proper divisors (1).

212031331000057 is an equidigital number, since it uses as much as digits as its factorization.

212031331000057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

Adding to 212031331000057 its reverse (750000133130212), we get a palindrome (962031464130269).

The spelling of 212031331000057 in words is "two hundred twelve trillion, thirty-one billion, three hundred thirty-one million, fifty-seven", and thus it is an aban number.